Questions Asked on
November 22, 2009

  1. science

    (Points: 10) For the following: i) HClO4 > HBrO4 > HIO4 ii) NH3 > PH3 > AsH3 > SbH3 iii) HOClO3 > HOClO2 > HOClO > HOCl iv) HBr>HCl>HF The order of acidity is correct for which series? 1. ) all are correct 2. ) ii and iii 3. ) ii and iv 4. ) ii 5. ) i,

    asked by victor
  2. Maths

    Differentiate using the product rule. How do i get from dy/dx = d(uv)/dx = u dv/dx + v du/dx =(5x-2)^3[-6(3-x)^5]+(3-x)^6[15(5x-2)^2] to: =(5x-2)^2(3-x)^5(-30x+12+45-15x) it's an example taken from my text book. Could you help me? thank you!

    asked by Karoline
  3. math

    it takes carissa five hours and thirty minutes to drive 440km to her parents house. calculate her average speed in kph

    asked by unknown
  4. Physics

    The Moon's period of revolution around the Earth is 27.3 d. How far away is the moon?

    asked by Amelia
  5. Movie review

    I didn't get help so just re-posting. I have to write a review of a film or play I've seen and I chose the movie "Law Abiding Citizen" I need help (the theme isn't really a theme, its the plot but I can't really come up with a theme.) Could this be it? A

    asked by Anonymous
  6. Math

    Hope Mom baked a cake in rectangular shape 10 by 6. If she starts at the corner and put acndle every 2 inches how many candles will fit around the edge of the cake?

    asked by Iris
  7. Nutrition

    SCI 241 final paper

    asked by Tina
  8. Math

    Hope Mom baked a cake in rectangular shape 10 by 6. If she starts at the corner and put acndle every 2 inches how many candles will fit around the edge of the cake?

    asked by Iris
  9. Riddle

    how did the hunter get hurt while bending over to study some tracks?

    asked by lulu
  10. Physics

    At what temperature is the rms speed of helium molecules half its value at STP (0 C, 1.0 atm})?(answer in K) I think i need to use V_rms=sqrt3kT/m k=1.38e^-23J/K helium has 4g so i think helium molecule is 4/6.02e23 but i don't know how to proceed further

    asked by ana
  11. physic

    Help me please.Thank you so much A uniform plank of length 2.00 m and mass 25.0 kg is supported by three ropes, as indicated by the blue vectors in the figure below. Find the tension in each rope when a 715 N person is 0.500 m from the left end. T1 have

    asked by Chan
  12. Physics

    This is the last time I'm posting this question. So pleas don't get mad. How many atoms of hydrogen are in 220 g of hydrogen peroxide (H2O2)? (220)/(34) then i multiply that # with 6.02E23 then again i multiply that # with 2 to get the number of hydrogen

    asked by ana
  13. math

    I need help how to figure out 2a-6c when a = -1/3 and c = 3/4

    asked by julia
  14. calc

    a) A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 40 ft/s^2. What is the distance covered before the car comes to a stop? b) A car braked with a constant deceleration of 40 ft/s^2 and produced skid

    asked by Jill
  15. Computer Programming

    /* Develop a C program that will determine if a department store customer has exceeded the credit limit on a charge account. For each customer, the following facts are available: a) account number b) Balance at the beginning of the month c) Total of all

    asked by Claire
  16. child development(am i correct)

    • Develop a presentation for early childhood and middle childhood groups that addresses health issues appropriate for each developmental level. • Illustrate a program you believe will raise child awareness of the importance of healthy life choices and

    asked by scooby
  17. elementary

    can you make a sequence, with five numbers, which has 6 and 12 in it?

    asked by Victoria
  18. Math

    using the elimination method ...does this problem have an answer?...if so how do you get it... 5r - 4s = -21 4r + 5s = 57

    asked by Kimberly
  19. Creative Writing

    Here is my essay after I made a few corrections that bobpursley pointed out. please, if there are still mistakes, tell me exactly how to fix them. There are some people who believe that true wisdom is knowledge; the more knowledgeable a person, the more

    asked by y912f
  20. Creative Writing

    Describe two advertisements (print, radio, or television) that have had a great effect on you. Be sure to discuss how you think the advertisers were able to influence you. What methods did they use that caught your attention? can someone please show me

    asked by y912f
  21. Creative Writing

    Right now, i'm learning about two types of ways to develop writing: directional Process Analysis, and Informational process analysis. In directional: this is when you follow step by step directions to complete something. some examples of topics that might

    asked by y912f
  22. history

    I need 20 facts about the rise of the nazi party

    asked by sam
  23. physics

    If a mass attached to the center of a vertical circle swings around at a fixed speed (v) and gravity pulls straight downward, would the tensions in the rope attached to the mass be different at the top of the circle, straight down to bottom of circle, and

    asked by Maggie
  24. Calculus

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman
  25. Math

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman
  26. Maths

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman
  27. math

    solve: x^2+2x-3=0

    asked by lala
  28. American National Government

    How does the other branches of government "check" the judicial branch in order to keep it from becoming too powerful? My answer is: The President puts forward the nomination for the judges and the Senate confirms them, this is considered to be a part of

    asked by B.B.
  29. sat

    With one of the most successful African American business in history, the Motown Record Corporation was founded in 1959in Detroit by Berry Gordy,Jr. A.With one B.It was one C.Being one D.One E.As one why can't i choose E? Assignment; does planning

    asked by jessica
  30. statistics

    Find the probability that a randomly selected person has an IQ score between 88 and 112.

    asked by Mya
  31. Literature

    'Choose two poems from your book that you will later write an essay about and make some notes on their similarities and differences.' This is what I got: I chose the poems 'I Never Saw A Moor' by Emily Dickinson and 'Kidnap Poem' by Nikki Giovanni because

    asked by mysterychicken
  32. 12th grade

    how do i do linear programming in algebra 2?

    asked by john
  33. Literature

    11. Which of the following pairs of words may be used as an example of approximate rhyme? a. now and later b. crew and two c. again and friend d. applause and gauze C 13. The women in Walker's poem struggle on behalf of their a. employers b. friends c.

    asked by mysterychicken
  34. chocolate

    Does anybody know where I can find Willy Wonka Chocolate Bars? I've never seen it in any of the local grocery stores, I've only seen willy wonka nerds and other fruit candies. Never chocolate. I thought maybe I should look in the mall, But I looked in the

    asked by y912f
  35. German

    Hello! Ich muss bis Dienstag eine erörterun schreiben. Titel: Niveauvolle Schulen ermöglichen bessere Ausbildung und Arbeitsleben. Ideen? stichwörter?kann jemand ein Paar Sätze schreiben? dke sehr!

    asked by Lulu
  36. Art

    Are shoes from the Renaissance and Baroque era for men and women?

    asked by AL 87
  37. Algebra

    A few questions on simplifying rational expressions... 1). 15x^2/10x this simplifies to 3x^2/2 according to my book. But I would think it should be 3/2x since x^2-x=x. Why not? 2). Simplify 3xy/xy+x. How come the (xy)'s don't cancel so you are left with

    asked by Jaz
  38. Algebra

    How do you factor an x^3 as in x^3+5x^2+6? Is there a general rule you can follow?

    asked by Jaz
  39. Physics

    The zeppelin Hindenburg exploded on May 6, 1937, in Lakehurst, New Jersey. The accident was due to this type of dirigible using hydrogen (density of H2, M = 2g/mol) as a gas. It carried up to 70 passengers and crew. Estimate how many passengers and crew

    asked by Nikita
  40. 7th grade Tx.History

    how did geography affect tx development?

    asked by Samantha
  41. Grade 11 Art

    I believe that Baroque and Renaissance shoes were made by hand. Is it true?

    asked by Anonymous
  42. Algebra

    Why does the square root of x^2+a^2=x+a?

    asked by Morganne
  43. Algebra

    Why does 5x/6x^2 become 5/6x? How did x-x^2 become an x on the bottom? Thanks!

    asked by Jaz
  44. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

    asked by Maggie
  45. algebra

    IN the first 4 games of the season a football team scores a total of 68 points at this rate how many points will the team score in 11 games

    asked by Sue
  46. physics

    A 2 kg mass is released from rest and slides down an inclined plane of 60 degrees a distance of 1 meter. It strikes a 250 N/m spring. What is the maximum compression of a spring? No one has answered this question yet.

    asked by Jon
  47. 8th grade

    Hi my class is doing a unit on patterns with algebraic expressions. And i need to find a difficult expression Figure# Term value 1 8 2 27 3 64 4 125 what is the algebraic expression and how did u do it? thank you. Math-Nick

    asked by Nick
  48. Geography

    Why do LEDC's find it more difficult to cope woth natural disasters, such as flooding, than MEDC's?

    asked by Numz
  49. art

    I need to know the main concepts of either the Protestant or Catholic Reformation?

    asked by B
  50. Math

    How would you solve this problem?: x2 + y2 = 25 x2 - y = 5 You have to solve for one variable either by substitution or elimination method and then use the answer to plug it in one of the equations to get the other variable. I've been at this problem for

    asked by .
  51. calc

    find the derivative of x-lnx

    asked by jackie
  52. Visual

    Are Baroque and Renaissance shoes made for a special kind of purpose? And were they upper or middle class shoes?

    asked by Anonymous
  53. HCA 240 week 5 DQ 1

    I need help with discussion question 1. Select and identify a disease in Ch.10 that can be prevented or controlled by changes in lifestyle rather than by medications or therapy. What lifestyle changes can individuals implement to prevent or control the

    asked by Markella
  54. home economics

    If a cake recipe calls for flour does it mean self rising or all purpose

    asked by barbara
  55. physics

    A 2000 kg space probe is moving rightward in empty space along the x axis at 12 m/s. One of the probe’s rockets is fired providing a thrust of 1800j N along the y axis. The rocket fires for 1.5 s. How can I derive the equation for the trajectory of the

    asked by Jon
  56. physics

    what minimum speed does a 100g puck need to make it to the top of a 3m long 20degree frictionless ramp?

    asked by jamieson
  57. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

    asked by Maggie
  58. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by Maggie
  59. 8th grade

    how do I balance equasions in science?

    asked by thomas
  60. Advanced Functions

    Determine all solutions in the interval x is all real numbers , [0, 2 pi] using a trigonometric identify 2cos^2x + sinx - 1 = 0

    asked by Anonymous
  61. Strategic Management

    Using the Bacardi website, develop both EFAS and IFAS table using an excel file. Also including both environmental and internal scanning process and what factors you consider and why will typed in MS word file.

    asked by Tess
  62. math

    what is the rate of a factor 1.25?

    asked by torrey
  63. physics

    at the top of a 60degree slope 25m high, at the bottom a circular arc with a 90degree turn and then a launch point 3m from the ground. how far horizontally is the touchdown point from the end of the ramp?

    asked by jamieson
  64. Strategic Management

    What is the difference between an EFAS and IFAS? Which factors are included in an EFAS? How do these factors differ from the factors that are included in an IFAS? Are there any weaknesses to the EFAS or IFAS classification systems?

    asked by Tess
  65. math

    how many different sequences of 4 digits possible if the first digit must be 3,4 or 5 and if the sequence may not end in 000? repetition of digits is allowed.

    asked by Kay Kay
  66. math

    Hi i need one more example of this algebraic expression please. and explain please. Fig# Value 1 0 2 1 3 8 4 27 Math-Nick

    asked by Nick
  67. 8th grade math

    Hi i need one more example of this algebraic expression please. and explain please. Fig# Value 1 0 2 1 3 8 4 27 Math-Nick

    asked by Nick
  68. math

    a deli offers it's cheese sandwich with various combinations of mayo,lettuce, tomatoes, pickles and sprouts. 5 different types of cheese are avaiable. How many different chesse sandwiches are possible?

    asked by Kay Kay
  69. Physics

    a 1kg ball is thrown into the air with an initial velocity of 30 m/sec. how much kinetic energy does the ball have? -how much potential energy does the ball have when it reaches the top of its ascent? -how high into the air did the ball travel?

    asked by Kim
  70. math

    if two-card hand is dealth from a well-shuffled deck of 52 cards, what is the probablity that the hand contains two kings?

    asked by Kay Kay
  71. algebra

    im not to good at algebra so here goes im supposed to multiply 5.(3.2) i know im supposed to multiply both sides by 5 but be on that im not sure what to do help please?

    asked by help
  72. Physics

    What is the potential energy of a 3kg ball that is on the ground. -do i do mgh? (9.8)(3kg) ?

    asked by Sandy
  73. Computer Science

    What is the halting problem? What does it have to do with self referential paradoxes? How do I make sense of this? "So suppose I have a black box which can decide the halting problem, that is I can give it a program P and the box tells me if P will ever

    asked by Elizabeth
  74. math

    Thomas is playing Tic-Tac-Toe with a computer. It is the computer's turn to place an "x" on the board. If the computer makes its moves at random in the open spaces, what is the chance it will win on this move?

    asked by barbie
  75. Algebra

    M is 5 years older than N. The product of their ages is 84. How old is M?

    asked by Devon
  76. science

    HELP PLEASE!!! ESPECIALLY PART 2 2. The following questions do not require the data above. Answer with the data given in each question. i. There is a total of approximately 12.4 billion acres of agricultural land (cropland, rangeland, irrigated land) on

    asked by ScienceConfusion
  77. physics

    Light of wavelength 700 nm is incident on the face of a fused quartz prism at an angle of 75 degrees (w/ respect to the normal to the surface). The apex angle of the prism is 60 degrees. Use the value of n=1.46 and calculate the angle (a) of refraction at

    asked by Marvin
  78. Literature

    13. The women in Walker's poem 'Women' struggle on behalf of their a. employers b. friends c. teachers d. children D Thanks -MC

    asked by mysterychicken
  79. Algebra

    The units digit of a two-digit number is 1 less than the square of the tens digit. The number reversed is 7 more than twice the original number. Find the original number.

    asked by Austin
  80. Managerial Finance

    You recently posted this answer (High degree of combined leverage), to the following question: A conservative financing plan involves: Are you sure the answer is not, heavy reliance on equity?

    asked by Mickey
  81. physics

    (a)The angular speed of a ceiling fan is increased uniformly in 3.0 s from 180 revs/min to 290 revs/min. What is the angular displacement of the blades during the acceleration? (b) 25 g of copper at 430 K is mixed with 150 mL of water 290 K. Assuming

    asked by Sandhya
  82. physics

    a) what is the density of a log floating in salt water if 42% of its volume is exposed? The density of salt water is 1025 kg/m^3 (b) What is the density of a sample of metal that sinks in water at 7.2 m/s^2

    asked by Sandhya
  83. English

    When you hear the words "volunteer work," what comes to your mind? (In this sentence why were quotation marks used? And what other expressions can we use instead of "What comes to your mind?)

    asked by rfvv
  84. math

    HOW TO FIND THE COMMON DENOMINATOR FOR 3/4,3/3,3/8,3/5,3/16,3/7,3/1

    asked by EDGAR
  85. English

    A: If you have done any volunteer work, how many times have you done it? B: 1 - 2 (How do you read B?) 1. Onece to twice. 2. Once through twice. (Are both OK?)

    asked by rfvv
  86. Algebra

    Solve the formula for the given variable. Assume all variables represent nonnegative numbers. A=6s^2, for s A. A/6 B. SQRT A/6 C. -SQRT A/6 D. Not given I believe the anser is B, but not 100% sure

    asked by Jen
  87. Managerial Finance

    The IF for the future value of an annuity is 4.5 at 10% for 4 years. If we wish to accumulate 8,000 by the end of 4 years, how much should the annual payment be

    asked by Mickey
  88. English

    1. A group of middle school students who help small children. 2. A group of middle school students who helps small children. (Do we have to use 'help' or 'helps'?) 3. World War II 1) World War Two the Second World War 2) World War two. the second World War

    asked by rfvv
  89. Algebra

    What are the exaxt solutions of (x-2)^2=1 I'm not sure how to set this one up I believe it goes .. x-2=SQRT1 x+2=-SQRT1 x+2=1 x-2=1 x=3 x=-1 I tried to substitute and 3 comes out correct, but -1 is not equalling the other side, can you tell me where I did

    asked by Jen
  90. chemistry 11

    Hi, I am stuck on a couple questions in chemistry 11. The questions are 1. Calculate the number of moles of the anhydrous salt left behind 2. Calculate the number of moles of water removed by heat from your sample of hydrate. 3. Calculate the moles of

    asked by Daniel
  91. English

    UNICEF 1. the United Nations International Children's Fund 2. United Nations International Children's Fund (What is the full form of UNICEF? Do we have to add 'the' or not? Thank you. And let me know a website which contains the explanation about the

    asked by rfvv
  92. Physics

    7.7 mol of helium are in a 16 L cylinder. The pressure gauge on the cylinder reads 65psi. What are (a) the temperature of the gas in Celsius and (b) the average kinetic energy of a helium atom? p=65psi=4.481592E5 p=65psi=4.42atm n=7.7mol v=16=.016m^3 T =

    asked by ana
  93. Physics

    Two astronauts, one of mass 61 kg and the other 82 kg, are initially at rest in outer space. They then push each other apart. How far apart are they when the lighter astronaut has moved 12 m?

    asked by Anonymous
  94. math

    The forward difference formula can be expressed as : f'(x0) = (1/h)[f(x0+h)-f(x0)]-(h/2)f''(x0)-(h^2/6)f'''(x0)+O(h^3). Use extrapolation to dervive an O(h^3) formula for f'(x0)

    asked by Alex
  95. Calculus

    At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 16 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per

    asked by Bobby
  96. crt 205

    I need to identify two arguments and define the premises and conclusion. I have to tell weather it is deductivly valid or inductivlely strong or in valid or weak and why. In the appendix 1 article Controlling Irrational Fears After 9/11. Can you help with

    asked by Lily
  97. Atmospheric Science

    One of the earliest examples of primitive humans, Australopithecus, lived in Africa between about 4 and 1 million years ago. For what fraction of Earth history have hominids been around?

    asked by Sandra
  98. 9th grade

    Determine whether y=2x-1 is a linear equation if so write equation in standard form . ?

    asked by d0llFACE
  99. Atmospheric Science

    Estimate the rate of freshwater mass production (kg s-1) by the melting of the North American ice sheet, assuming that its melting took 500 years. How does this compare with the rate of deep-water formation in the North Atlantic, which is estimated to be

    asked by john
  100. Atmospheric Science

    The current magnitude of the greenhouse effect is measured by the difference between the emission from the surface and the emission from the top of the atmosphere, € G =σTs 4 −σTe 4 ≈ 150 W m-2. What would be the required magnitude of the

    asked by donna
  101. 9th grade

    Determine whether y=2x-1 is a linear equation if so write equation in standard form . ?

    asked by d0llFACE
  102. home economics

    what is a third course meal

    asked by bibi
  103. Alegebra, math 116

    1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 56

    asked by Jess
  104. grammar

    In the sentence: "our cat katie usually drags its food out of the dish when its happy", what capitalization and puncutation is needed to make the sentence correct?

    asked by Kim
  105. MATH/ALGEBRA PLEASE

    I am having a real issue with this one problem the problem is : y=1/3x-3 I am supposed to graph the problem and then find the y intercept. First I substituted x with 12. Y=1/3(12)-3 s divided by 12 is 4, now I subtract 3from 4 and get 1 therefore, my first

    asked by Lisa
  106. Physics (answers included)

    Two mountains are 1.00 km apart. If their masses are identical (2.00 × 1010 kg), what is the force due to gravity between the mountains? Fg=(GMm)/ r^2 =(6.67x10^-11 N*m^2/kg^2)(1010kg) (1010kg)/ (1000m)^2 =6.80x10^-11 N But the possible answers are: 2.67x

    asked by Jacob
  107. histroy

    what is the name of the first set of humans that was on earth

    asked by paula
  108. math

    f(x) =-8x-5 find the slope and the y-intercept

    asked by lynn
  109. English

    how do you write a email to set up a meeting with a client for a Wed at 2 p.m. and

    asked by Anonymous
  110. chemistry

    How many calories are required to heat 25.0 g of platinum from 24.5 °C to 75°C (specific heat of platinum = 0.139 J/gK)? 1. 47 cal 2. 42 cal 3. 48 cal 4. 20 cal 5. 80 cal Thank you.

    asked by Danny
  111. Chemistry

    For the following: i) HClO4 > HBrO4 > HIO4 ii) NH3 > PH3 > AsH3 > SbH3 iii) HOClO3 > HOClO2 > HOClO > HOCl iv) HBr>HCl>HF The order of acidity is correct for which series? 1. ) all are correct 2. ) ii and iii 3. ) ii and iv 4. ) ii 5. ) i, iii, iv

    asked by Apple
  112. MATH...somewhat urgent

    I have three problems I would like checked please.1: I need to graph and find the y intercept of 6y+5x=-18 First I want to solve for y therefore I will let x be 0: 6y+5(0)=-18 6y=-18...I will now divide y=-3 Therfore the first set to plot would be (0-3)

    asked by Lisa
  113. statistics

    A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At á = .05, does vehicle type vary by mall location? Vehicle Type Somerset Oakland Great Lakes Jamestown

    asked by Anonymous
  114. Literature

    What are the tones in the poems 'I Never Saw a Moor' by Emily Dickinson, and 'Kidnap Poem' by Nikki Giovanni? What is the tone of a poem and how do i determine it? Thanks -MC

    asked by mysterychicken
  115. Probability

    From a group of eight women and seven men, a committee of six is chosen randomly. Find the probability that three women and three men will be chosen.

    asked by Anna
  116. CRT 205

    A(n)_____ is a set of claims intended to support or prove a conclusion.

    asked by jason
  117. math

    A car carrier is traveling 442 miles from Toyko to the Port of Long Beach with new Toyotas. The ship wil travel at a rate of 22 knots. How long will it take for the ship to reach the Port ?

    asked by Isuckatmath
  118. Literature

    What is the structure of Nikki Giovanni's 'Kidnap Poem'? Thanks -MC

    asked by mysterychicken
  119. Visual

    Why are Baroque and Renaissance era shoes they upper or middle class footwear?

    asked by AL 87
  120. Math

    The New Toyota cars will be sent to New York by train, about 2,850 miles. The train will travel an average speed of 50 miles per hour. How long will it take to reach New York ?

    asked by Isuckatmath
  121. Geometry

    Williamston Daily is a new daily newspaper. When they first started printing three years ago they had 5700 home delivery subscribers. The number of subscribers increases by 67 every month. Write an equation that shows the relationship between the number of

    asked by aleah
  122. Social Studies

    We are doing this project for social studies, where each group gets a portion of Europe and basically make up their life their and stuff. So, I have the Southeast part and need to make the trade and commerce part. He said we could use what they really do,

    asked by Ashley
  123. Math

    How do I write each of the factors as multiples of 10 or 100, group them so the multiples of 10 are together and determine the final product?

    asked by Lin
  124. Geometry

    How many different sequences of 4 digits are possible if the first digit must be 3, 4, or 5 and if the sequence may not end in 000? Repetition of digits is allowed.

    asked by aleah
  125. Probability

    Find the probability of obtaining between 50 and 55 tails inclusive when a fair coin is flipped 80 times. (answer accurate to four decimal places.)

    asked by Anna
  126. physics

    At what temperature do the molecules of nitrogen gas have an rms speed of 35 ?

    asked by Anonymous
  127. physics

    hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up

    asked by Chan
  128. Literature

    'Poetry is first of all about feelings. Make a list of all the feelings you can think of and choose five that can be the starting points for a poem. Try making up five similes that compare the feeling to an object, an animal, or a person.' Here are the

    asked by mysterychicken
  129. Geometry

    If each angle of a regular polygon measures 150°, how many sides does it have?

    asked by aleah
  130. MATHS

    Christina’s age is equal to three times her age in 3 years’ time minus three times her age 3 years ago. How old is Christina?

    asked by Bryan
  131. chemistry

    How do you calculate molar mass again?

    asked by Klaud
  132. Geometry

    Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $650 to set up for production, and variable costs of $40 per jacket. Find an equation that can be used

    asked by aleah
  133. Calculus BC

    s(t)=t^3 - 5/2 t^2 - 2t + 1 for all t>=0, 1. what was the displacement on 0

    asked by Cb
  134. English

    1. Volunteer is not something that you must do. 2. Volunteer is not anything that you must do. 3. Volunteer is not a thing that you must do. 4. Volunteer is not the thing that you must do. 5. Volunteer is not an important thing that you must do. (What is

    asked by rfvv
  135. 7th grade science

    how do you change the question do you want to know about heat transfer into a regular sentence?

    asked by jamzin
  136. Finance

    Discuss the law of supply and demand. Do people follow this law? Why or why not? How are the prices set for the goods and services people consume? What control, if any, do you as a consumer have?

    asked by PARADISE
  137. Jess

    I don't understand terpenes. They are supposed to be made of isoprene units, but how come some of them are missing double bonds? Like menthol?

    asked by Organic chemistry
  138. Chemistry

    Label each of the following reactions as exothermic or endothermic ("exo" or "endo"), and according to whether work is done on or by the system, or no work is done at all ("on", "by" or "none")? Note that no "endo-on" cases appear here, as these are always

    asked by victor
  139. math

    solve the equation 2a-4>3a

    asked by kiana
  140. chem

    You wish to prepare an aqueous solution of glycerol, C3H5(OH)3, in which the mole fraction of the solute is 0.093. How many grams of glycerol must you combine with 425 grams of water to make this solution? What is the molality of the solution? PLEASE HELP!

    asked by mike
  141. Geometry

    Assume y varies directly as x. If x = 24 when y = 24, what is the value of k?

    asked by Letisha
  142. math 156

    what are the factors of 70? can anyone back me up on them being 1, 5, 7,14, 10 and 70

    asked by Rmz
  143. ALGEBRA

    I know the answers, but am having trouble writing the equation. Their ages are 17 and 8.5, and 14.5 Can I get help with the equaiton? The sum of the ages of Sonia, Collin, and Ana is 40. Sonia is twice as old as Ana. Ana is 6 years younger than Collin. How

    asked by BELLA
  144. science

    Is oil inexhaustible?

    asked by bob
  145. english

    In the following sentence, what is the verb and what tense is the verb? What will you do after graduation?

    asked by jeanne
  146. Art

    I need to know what period this piece comes from: Procession of Gondolas in the Bacino di San Marco by Francesco Guardi I think that it is neoclassicism, is that correct?

    asked by Anonymous
  147. english

    What is the verb tense for the following sentence? Where are you going after school today?

    asked by jeanne
  148. english

    what tense is the verb in the following sentence? What are you wearing to school tomorrow?

    asked by jeanne
  149. Biology

    Both photosynthesis and aerobic cellular respiration are examples of complex metabolic pathways, consisting of many linked chemical reactions that require enzymes to function. Briefly, explain two (ONLY TWO) attributes of enzymes in catalyzing chemical

    asked by med
  150. eco 205

    This is the assignment I chose Casino's Find at least two sources to help you answer the following questions about the industry you chose. o For what purpose were these sources created? o Who is the intended audience for these sources? What factors helped

    asked by Mary
  151. math

    please can you show me how the get the prime factorization of 392. thank you

    asked by paula
  152. science

    Is oil nonrenewable?

    asked by bob
  153. science

    Is oil renewable?

    asked by bob
  154. Orgo

    How do I know which cyclohexdiene (?) is more stable? There's one where the double bonds are directly opposite each other (1,4) and another where they are almost next to each other but skip one side (1,3).

    asked by Candice
  155. science

    So is oil renewable or not

    asked by bob
  156. English

    (Thank you. I corrected them. Does 'something' in Sentence 1 mean 'an important thing'? More explanation, please. Thank you.) 1. Volunteer work is not something that you must do. 2. Volunteer work is not anything that you must do. 3. Volunteer work is not

    asked by rfvv
  157. Historical Lit Classic

    Has anyone here either read Herodotus' The Histories or gained a familiar with what recent scholars have written about them? What has academia explored within the last few decades in major journals that would be worth investigating?

    asked by Bo
  158. science

    So Sue oil is not renewable

    asked by bob
  159. Soc Welfare

    I am taking part in a debate on Tuesday. I am on the side saying that our nation should not have universal health care insurance coverage like some other countries do. Call it medicine with communism, socialism, Marxism, or something along those lines if

    asked by Ezekiel
  160. science

    Is oil metallic

    asked by bob
  161. Com220

    Ms. Sue is thesis statement for A Nation Apart Millions of workers are out of jobs. I think this the right answer but I just wanna be sure before I post it.

    asked by MS. Worsham
  162. biology

    Why can't there be OY abnormalities of the sex chromosomes

    asked by Susan
  163. 5th grade

    what can you tell me about Amerigo Vespucci?

    asked by Maya
  164. 10th grade English

    I'm writing an essay for English class. I was just wondering if somebody could read over this sentence and tell me whether or not it sounds alright. Everybody wants to be happy, but we often forget how easy it can be to attain hold of that happiness due to

    asked by Mikayla
  165. Physics

    A spy camera is said to be able to read the numbers on a car's license plate. If the numbers on the plate are 6.0 cm apart, and the spy satellite is at an altitude of 160 km, what must be the diameter of the camera's aperture? (Assume light with a

    asked by Anonymous
  166. com220

    Iguess I did but I always thought too that the thesis couldn't be a question or more than 25 words.

    asked by MS. Worsham
  167. ECON

    Purchasing government bonds through open market transactions, allows the Federal Reserve to

    asked by BON
  168. physics

    . A 2.0 kg particle is moving along the x axis to the left with a velocity of v= -6.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the

    asked by Maggie
  169. Geometry

    A water delivery truck with a cylindrical tank measuring 8 ft in diameter and 8 ft long dispenses water to drought victims in cartons measuring 6 in. × 6 in. × 12 in. How many victims will get a full container of water?

    asked by aleah
  170. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by Maggie
  171. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

    asked by Maggie
  172. physics

    A 2000 kg space probe is moving rightward in empty space along the x axis at 12 m/s. One of the probe’s rockets is fired providing a thrust of 1800j N along the y axis. The rocket fires for 1.5 s. How can I derive the equation for the trajectory of the

    asked by jon
  173. Geometry

    A spherical dog toy has a radius of 5.4 cm. Find the volume.

    asked by aleah
  174. AP BIO

    A fully illuminated plant was placed in an atmosphere containing CO2 composed of radioactive carbon. Then the atmosphere surrounding the plant was exchanged for air containing no radioactive carbon, and the plant was placed in total darkness. When the

    asked by Quinny
  175. Geometry

    A spherical storage tank has a diameter of 48 ft and is full of water. How many delivery trucks with cylindrical tanks measuring 8 ft in diameter and 10 ft long can be completely filled from the storage tank?

    asked by aleah
  176. MATH

    FIND Y" if Y=ln(sec(x)+tan(x))

    asked by OMAR
  177. algebra

    Hosni gave the following argument that 2(a 1 b) 5 2a 1 2b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect, explain why not

    asked by k
  178. math

    Over the past two weeks, Jane earned $292 and $193 respectively, at her part time job. What must she earn in the third week to bring her three-week average earnings to $200 per week?

    asked by abby
  179. history

    what are republicans view on social security. please helppp This is what i have so far:Workers will have choice to invest their payroll taxes. Anyone currently receiving Social Security, or close to it, will not be impacted by any changes.Today’s workers

    asked by melissa
  180. math

    Which is the best investment for three consecutive years? a. A growth of 5% followed by a growth of 10% followed by a growth of 15% b. A growth of 15% followed by a growth of 10% followed by a growth of 5% c. Three years of growth at 10% per year.

    asked by Meg
  181. math

    Find the amount of money in an account after 12 years if $1000 is deposited at 5% annual interest compounded quarterly.

    asked by Meg
  182. math

    How can you use a proportion to solve a percent word problem? Explain in your own words.

    asked by Meg
  183. math

    Find the multiplicative inverse of the number. 9 1/7

    asked by Meg
  184. math

    Decide whether or not the set is closed under addition. { 2, 4, 6, 8, . . .}

    asked by Meg
  185. math

    A is the set of all even natural numbers, and B is the set of all odd natural numbers. Describe a universal set for A and B. Also, with respect to this universal set, give a relationship between A and B.

    asked by Meg
  186. MATH

    6/8 = 15/? = 24/32 Is 15/20 correct answer?

    asked by john
  187. physic

    hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up

    asked by Chan
  188. college

    Select one artwork that expresses a human experience you have encountered in your own life.

    asked by debra
  189. finance 200

    14. Lear, Inc., has $800,000 in current assets, $350,000 of which are considered permanent current assets. In addition, the firm has $600,000 invested in fixed assets. a. Lear wishes to finance all fixed assets and half of its permanent current assets with

    asked by finance question
  190. prealg

    how do you turn 0.18 into a fraction?

    asked by jerson
  191. English

    1. This is a group of students who help the sick. 2. These are a group of students who help the sick. 3. This is a group of students who helps the sick. 4. These are a group of students who helps the sick. (Which expressions are correct? Please focus on

    asked by rfvv
  192. Psy 220

    Write a 700- to 1,050-word response explaining how you believe an individual’s attachment style can affect the types of love relationships he or she has.

    asked by SaaWanda
  193. English

    Is this a good thesis statement for an essay? If not, how should it be? In To Kill a Mockingbird, the auther Harper Lee chooses the protagonist Scout to be the narraotr of her novel because she is young, innocent and the narration is written in her adult

    asked by Louis
  194. Geometry

    The following scores on the midterm exam in Chemistry 102 were recorded: 93 81 59 69 82 73 61 77 95 84 88 71 86 97 63 72 89 80 60 98 91 62 78 83 76 81 94 66 83 96 Find the interquartile range (IQR).

    asked by aleah
  195. Geometry

    The foundation for a cylindrical water tank is a cylinder 27 ft in diameter and 3 ft high. How many cubic ft of concrete are needed to build the foundation? for this problem I came up with 1716.8. 3.14*13.5*13.5*3= 1716.795 or 1716.8 Can someone let me

    asked by aleah
  196. math

    Form a disjunction from the following two statements and determine if the disjunction is true or false. Two is an even number. Two is a prime number.

    asked by Meg
  197. Math

    Use the distributive property of multiplication over addition to rewrite the sum as a product of two factors, where one of the factors is a sum. A) 4(5a^2 - 4 - 2a) B) a(20a^2 - 16a - 8) C) 4(5a^ - 4a - 2) D) 4a(5a - 16 - 8a)

    asked by Meg
  198. math

    Give a verbal, visual, numerical, and graphic representation for the idea one and one-sixth.

    asked by Meg
  199. Math - extrapolation

    The forward difference formula can be expressed as : f'(x0) = (1/h)[f(x0+h)-f(x0)]-(h/2)f''(x0)-(h^2/6)f'''(x0)+O(h^3). Use extrapolation to dervive an O(h^3) formula for f'(x0)

    asked by Mickey
  200. Geometry

    Alonso can't decide which size pizza to order. The 10-inch cheese and sausage pizza is $7.99, while the 12-inch deluxe is $8.99. The dimensions given are the diameters of the pizzas. If he gets the 10-inch pizza, the total price will be divided among 3

    asked by aleah
  201. Geometry

    A small farm field is a square measuring 230 ft on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter? For this question, I came up with 920ft, 1840ft. Am I correct?

    asked by aleah
  202. social studies

    describe two approaches or indicators to measuring patient outcomes

    asked by titus